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#Caché

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InterSystems Caché is a multi-model DBMS and application server. See more details here.

Documentation.

Hi Guys,

I would like to develop a login page in Zen mojo application with Desktop and mobile application. It should be adopt with desktop, android and iOS application.

If any lead would be appreciated.

Thanks,

Arun Kumar D.

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Question
· Feb 20, 2018
REST Data Limit

I'm experimenting with sending large amounts of data in a POST payload to be stored as a stream. However I've noticed that no matter how many characters are in the message, Cache only gets about 32k of them, cutting off the rest. Conversely as expected it can only send about 32k worth of characters in a payload.

Before I get creative, is there a REST message size limit that can be changed? Or is there something else going on here?

Thank you!

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Let's say I want to execute this cache script (saved as test.txt) from OS terminal:

zn "USER"
write 1
zn "%SYS"
write 2
halt

Executing the following command in a terminal:

csession cache < test.txt

Would yield this output:

$ csession cache < script.txt

Node: gitlab-test, Instance: CACHE

USER>

USER>
1
USER>

%SYS>
2
%SYS>
Job succeeded

Is there a better way to run these scripts?

Currently I have two problems:

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I have a dataListBox in ZEN which has an OnDrawItem method associated with it. The DrawItem method never seems to be called and I cannot see why. I am using IE11. Can anyone suggest a reason? The attached code runs in a namespace called CODE and can be run using view webpage on the TheLabsApp.BioAnal class. Please note that the data is in a global called ^%ANAL that resides in %SYS.

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Hi.. I have an issue where we are using OAuth2.0 with the ZAUTHENTICATE routine. Once our token is validated we are using a users lan id (passed on the ID token) to find a software defined username in a Cache Global.

That is all working fine in ZAUTHENTICATE.. I am setting the software defined username in the Properties("Comment") array and wanting to reference it in the Rest Service Dispatch class.

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Question
· Feb 15, 2018
The Index on a String field

I noticed that the subscript of the index map is actually the collated field (%SQLUPPER).

Is String the only data type going through this transformation? Any other data type would also go through this transformation?

Thanks.

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Question
· Feb 15, 2018
Retrieving REST Data

I'm sending data via ajax to my REST service, and while retrieving any information sent in the url parameter is easy when they're defined in the route, I can't get anything if I store information in the data parameter. For example:

$.ajax({
               url: "ServerURL",
               data: { "some": "json" } //How do I get this information?

...

I've looked at many common solutions such as here:

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I was curious if application partners were developing their own task managers for scheduling background tasks, or using the built in task schedule that is part of the Cache platform.

For those that are using the Cache task manager, what has been your method for distributing default tasks that your application needs during initial install as well as upgrades? Are you distributing an export of the %SYS.Task object, or perhaps you are distributing an installation script that adds a task to the task scheduler when it is first run?

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Question
· Feb 9, 2018
SQL prepare error

I'm trying to learn how To use SQL in CACHE, so I hope I don't bore you with "Dumb" questions....

I'm getting "ERROR #6022: Gateway failed" message following this line of code. 

s sc=gc.Prepare(hstmt,pQuery)

This line of code comes from an example I found in the documentation. pQuery is the "Select" statement setting up the variables and tables I'm trying to pull information from.

What does that error indicate?

Thank you.

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Question
· Jan 15, 2018
Access token storage

Hi community ,

i work actually on the access token generation method , i want know where the generated access token are saved ?

My [OAuth2.AccessToken] tabe is empty , it's logical?

thank's for helping .

Best regards

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Hi Guys,

I would to know, I have a drop down list items in my applications. While, am clicking on the drop down bx, there are few numbers of listed items, while am doing mouse over action, I should display the entire text of selected item from that drop down list box, even am not selecting that item. I would like to know about the what is exact text it contains in Zen framework.

If any lead would be appreciated.

Thank you in advance.

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Hi,

Is it possible to Save a base64 data string, representing a png, as a binary png file, In Cache?

When I search google , in general , not Cache specifically, I see such articles:

https://stackoverflow.com/questions/11511511/how-to-save-a-png-image-ser...

and this answer:

You need to extract the base64 image data from that string, decode it and then you can save it to disk, you don't need GD since it already is a png.

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Question
· Feb 9, 2018
To use runlevel

Hi,

Has anybody used /epic/prd/bin/runlevel with different options to bring up or shutdown the cache db. I cannot see any information about it in the manual.

Regards,

Anil

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Hi,

I would like to set the report headerHeight dynamically based on a group records count.

Example:

If GroupA has 5 records then the headerHeight should be 50mm

If GroupA has 3 records then the headerHeight should be 30mm

Could you please advice the best approach to achieve this?

Thank you,

Rui

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Is there an API that would list classes within a given package? I can't find any. I do have a workaround that uses class index, but this query lists all classes available in the namespace and I have to filter those I want. But this is just unnecessary overhead.

If anyone has spotted such API, please let me know.

TIA!

Dan

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